Ofw MCP Server

OurFamilyWizard MCP

A Model Context Protocol server that connects Claude to OurFamilyWizard, giving you natural-language access to your co-parenting messages, calendar, expenses, and journal.

[!WARNING] AI-developed project. This codebase was entirely built and is actively maintained by Claude Sonnet 4.6. No human has audited the implementation. Review all code and tool permissions before use.

What you can do

Ask Claude things like:

• "Show me my recent OFW messages"
• "What's on the kids' calendar next week?"
• "List recent expenses and tell me what I owe"
• "Add a journal entry about today's pickup"
• "Draft a reply to the last message from my co-parent"

Requirements

• Claude Desktop
• Node.js 22.5 or later (node:sqlite is the cache backend)
• An active OurFamilyWizard account

Acknowledgement of Terms

By using this MCP server, you acknowledge and agree to the following:

1. This server accesses your own OurFamilyWizard account. Auth happens via your own credentials. It does not — and cannot — access your co-parent's account, your children's accounts, or anyone else's.

2. OurFamilyWizard's Terms govern your use of this server, just as they govern your direct use of OFW. There is no explicit anti-scraping clause; the governing language is broader:

Users may not obtain or attempt to obtain any materials or information through any means not intentionally made available.

And on credentials: "You are solely responsible for (1) maintaining the strict confidentiality of assigned Authentication Methods, (2) instructing any individual to whom the assigned Authentication Method is shared ('Authorized User') to not allow another person to use the Authentication Method." OFW does contemplate "Authorized Users" and third-party-enabled integrations — but the account holder remains responsible.

You are agreeing to those terms — read by the maintainer 2026-05-23 — every time you invoke a tool in this server.

3. Personal, family use only. This project is not affiliated with, endorsed by, sponsored by, or in partnership with OurFamilyWizard, LLC or its parent. It is a personal automation tool for the named account holder. Do not use it on behalf of a co-parent without their consent, do not share credentials with anyone, and do not use it to bulk-extract another family's data.

4. OFW is a court-of-record platform. Messages, expenses, calendar entries, and journal entries on OFW may be entered into legal proceedings — including custody, divorce, and parenting-plan-modification cases. Anything this server writes to OFW (drafts you save, events you create, expenses you log) will appear with the same legal weight as if you had typed it yourself. Do not let this MCP send a message, create an event, or log an expense that you have not read and approved. Review every write operation before confirming.

5. You accept full responsibility for any consequences — both technical (account warnings, suspension) and legal (anything OFW records about your account activity). The MCP author is not your attorney; if you're using OFW in connection with an active legal matter, talk to your actual attorney before automating anything.

This section is the maintainer's good-faith summary of the terms — it is not legal advice and does not modify or supersede OurFamilyWizard's actual ToS.

Installation

1. Clone and build

git clone https://github.com/chrischall/ofw-mcp.git
cd ofw-mcp
npm install
npm run build

2. Add to Claude Desktop

Edit your Claude Desktop config file:

• Mac: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

Add the ofw entry inside "mcpServers" (create the key if it doesn't exist):

{
  "mcpServers": {
    "ofw": {
      "command": "node",
      "args": ["/absolute/path/to/ofw-mcp/dist/index.js"],
      "env": {
        "OFW_USERNAME": "your-email@example.com",
        "OFW_PASSWORD": "your-ofw-password"
      }
    }
  }
}

Replace /absolute/path/to/ofw-mcp with the actual path where you cloned the repo. On Mac, run pwd inside the cloned directory to get it.

3. Restart Claude Desktop

Quit completely (Cmd+Q on Mac, not just close the window) and relaunch.

4. Verify

Ask Claude: "What does my OFW dashboard look like?" — it should show your unread message count, upcoming events, and outstanding expenses.

Authentication

ofw-mcp tries three auth paths in order; whichever succeeds first is used. Existing setups keep working unchanged.

1. Env-var credentials (legacy, recommended for Claude Desktop). Set OFW_USERNAME + OFW_PASSWORD and the server logs in via OFW's form endpoint. This is the path shown in the Claude Desktop config above.
2. fetchproxy fallback (no env vars needed). When the credentials are absent, the server reads localStorage["auth"] once at startup from your already-signed-in ourfamilywizard.com tab via the ContextMint Bridge browser extension (built on fetchproxy). After that one read, all OFW API calls go directly from Node — the extension is not in the request hot path. Install ContextMint Bridge from its releases page (Chrome: download the Chrome zip, unzip it, and load it unpacked at chrome://extensions with Developer mode on; Safari is not available yet — it will ship inside the ContextMint app, which has no public download — so use Chrome for now), sign into OurFamilyWizard once, and the MCP just works. ContextMint Bridge is the fetchproxy browser extension under its new name, from the same maintainer — fetchproxy's own README (https://github.com/chrischall/fetchproxy#extension) points to it. Its source is public at https://github.com/nullnet-app/contextmint-bridge: build it yourself, or check a release zip against the .sha256 file published beside it (shasum -a 256 -c contextmint-bridge-chrome-<version>.zip.sha256). If you have multiple OFW accounts and want them to use separate caches, set OFW_CACHE_IDENTITY to a label per profile.
3. Error. If neither path is available, the server tells you exactly which fix to apply. Set OFW_DISABLE_FETCHPROXY=1 to skip the fetchproxy fallback entirely (turns missing credentials into a hard error — useful in headless CI).

Credential options (env-var path)

Option A — env block in Claude Desktop config (shown above, recommended):

"env": {
  "OFW_USERNAME": "your-email@example.com",
  "OFW_PASSWORD": "your-ofw-password"
}

Option B — .env file in the project directory:

cp .env.example .env
# edit .env and fill in your credentials

Environment variables always take priority over the .env file. You can also pass them directly on the command line:

OFW_USERNAME=you@example.com OFW_PASSWORD=yourpass node dist/index.js

Available tools

Read-only tools run automatically. Writes that reach your co-parent or the court-visible record — Confirm (server) below — are confirmed by the server itself before anything is sent (see Server-side confirmation); the other writes rely on your MCP host's own approval prompt (Confirm). The Write mode column shows the minimum OFW_WRITE_MODE a tool needs to be available at all — see Write protection below.

Data freshness (OFW_FRESHNESS_TTL_SECONDS)

Message and draft reads are served from the local cache, which means a result can look authoritative while being minutes or months out of date. The cache also cannot detect some changes on its own: editing a draft in the OFW web app bumps no timestamp at all, so "nothing changed" and "we didn't look" are indistinguishable unless the server says which happened.

So every read tool (ofw_list_messages, ofw_list_drafts, ofw_get_message, ofw_list_message_folders, ofw_sync_messages) returns a freshness block alongside its data:

"freshness": {
  "source": "cache",
  "asOf": "2026-07-20T12:40:00.000Z",
  "ageSeconds": 5231,
  "staleness": "unverified",
  "lastServerSyncAt": "2026-07-20T13:59:00.000Z",
  "syncComplete": false,
  "historyComplete": true,
  "warning": "Served from cache last verified 87 min ago; the last sync did not finish checking drafts. Re-read before asserting current state — call ofw_check_freshness for a cheap live confirmation, or ofw_sync_messages to refresh."
}

staleness is fresh only when the data was fetched live in that call, or verified against OFW within the threshold by a sync that actually reached that folder. It degrades to unverified when it ages out or a sync skipped the folder, and stale when the folder has never been checked at all. Anything other than fresh always carries a human-readable warning stating the age and the reason. The bias is deliberate and one-directional: a false unverified costs one extra call, whereas a false fresh lets remembered state be narrated as present fact.

Drafts additionally carry per-item cacheStatus, asOf, and serverConfirmed — true only when a completed drafts walk verified them inside the threshold. serverConfirmed: false means a draft's existence and unsent status are remembered, not known, and should not be stated as current fact without calling ofw_check_freshness first.

ofw_check_freshness is the cheap way to re-verify: one request for a folder count comparison plus one per message id, no bodies, no full sync. Draft ids are compared by content revision, not timestamp, for the reason above. It probes ids that are cached as drafts, as sent messages, or as already-read inbox messages freely, because none of those can change anything; any other id would mark an unread inbox message as read on OurFamilyWizard — an irreversible change to a court-visible record — so those are skipped unless you pass allowMarkRead: true.

Set OFW_FRESHNESS_TTL_SECONDS to tune the threshold (default 300, i.e. 5 minutes). Unusable values fall back to the default rather than widening the window.

Is it still what I think it is? (ofw_status)

Freshness answers how old is this data. It does not answer is this entity still what I think it is — and that is a different failure. A draft that has been sent still exists on the server, so "does this id exist?" comes back true for the one case where the answer matters most.

ofw_status is the call that should back any status summary:

{
  "checkedAt": "2026-07-28T09:12:00.000Z",
  "requested": [
    { "id": 538279699, "state": "sent", "sentAt": "2026-07-27T23:31:09", "inSync": false },
    { "id": 538086428, "state": "draft", "inSync": true }
  ],
  "complete": true
}

• state is draft, sent, received, deleted or unknown, read live from OFW. unknown means the question was not answered — it is not a synonym for "fine".
• With no arguments it returns the full draft inventory, verified against OFW first.
• complete: true means every part of the snapshot was confirmed live. If it is false, incompleteReasons says what wasn't, and the payload is not a basis for stating a count.

Draft keys. Editing a draft mints a new OFW id every time (ofw_save_draft replaces by create-then-delete, because OFW's update-in-place endpoint silently no-ops). ofw_save_draft therefore also returns a draftKey that stays constant across every edit and follows the message into Sent. ofw_status(draftKeys: ["dk_…"]) resolves it to the current id and state — including state: "sent" with sentMessageId — so "what happened to the draft I was working on?" is one call, not a guess about which id is current.

Absence is never reported from a stale cache

A cached read that comes back empty is shaped identically to a verified "nothing there". ofw_list_messages, ofw_list_drafts and ofw_get_unread_sent therefore refuse rather than answer when the result is empty and the backing cache is not fresh:

{
  "result": "UNVERIFIED_EMPTY",
  "reason": "No drafts were found, but the backing cache is \"unverified\" — it was last verified 207 min ago. Refusing to report absence from unverified data…",
  "remedy": "Call ofw_sync_messages(folders:[\"drafts\"]) and retry, re-call with autoRefresh:true, or use ofw_status(includeDraftInventory:true) for a single live answer.",
  "complete": false
}

A false negative ("no, that was never sent") is more dangerous than a refusal, because it reads as a definitive answer. Non-empty results are never withheld — a stale cache that did find something is still evidence of presence, labelled with its age as before. Pass autoRefresh: true (or set OFW_AUTO_REFRESH=true) to have the tool sync and answer instead of refusing; a refresh that still cannot make the read verifiable refuses anyway.

Every list read also carries an explicit complete boolean describing the result set — "this is every matching item on OurFamilyWizard as of asOf" — with a completeNote naming what is missing when it is false. Check it before stating a count.

Server-side confirmation (MCP_CONFIRM_MODE)

The writes marked Confirm (server) above — sending a message, logging an expense, creating/updating/deleting a shared calendar event, and uploading a file as SHARED — are confirmed by this server, not left to the host. A client that can show a confirmation prompt (Claude Code) gets one, with a preview of exactly what would happen, unless MCP_CONFIRM_ELICITATION=off. A client that cannot (claude.ai, Claude Desktop) gets two steps: the first call writes nothing and returns that preview plus a confirmToken, and only a repeat call with the same arguments and that token proceeds.

Previews name what you are approving — recipients by name, subject and full body, the reply target, attachment file names; the expense amount and description; the event's title, date, time, visibility and (for an update) before and after. The token is bound to exactly that: a different body, amount or recipient is refused, and so is a draft or event that changed on OurFamilyWizard after the preview (say, the co-parent edited the event), even with force: true. A token works once and expires.

Private events and PRIVATE uploads — which the co-parent never sees — are not gated. OFW_WRITE_MODE below stays the structural layer underneath: a tool your write mode excludes does not exist at all.

A write that times out is not a write that failed. If ofw_send_message, ofw_create_expense, ofw_create_event or ofw_create_journal_entry loses its connection or times out without a definitive answer from OFW, the result is SEND_UNCONFIRMED / EXPENSE_UNCONFIRMED / EVENT_UNCONFIRMED / JOURNAL_UNCONFIRMED: it may have landed. Check the matching list tool (or ourfamilywizard.com) before retrying, or the co-parent sees it twice.

Write protection (OFW_WRITE_MODE)

The host's "Confirm" permission above is a hint to the MCP host — a host configured to auto-approve tools (or a user who clicked "always allow" once) would leave nothing between model output and a sent message. Because OurFamilyWizard is a court-of-record platform, the server also supports a structural gate: set OFW_WRITE_MODE in the server's env block and tools above your chosen level are never registered, so no host setting or prompt-injected instruction can invoke them.

Unrecognized values fail closed to none, with a warning on stderr — a typo never silently grants write access.

Expense-only deployments

For a dedicated reimbursement integration, you can also structurally remove unrelated OFW capabilities:

These flags are registration-time restrictions, not prompt instructions. A host cannot call a tool that was never registered. Unrecognized non-empty flag values fail closed to the restricted state. OFW_WRITE_MODE still applies underneath; for the strict upload workflow set OFW_WRITE_MODE=all so expense creation is available.

Recommended reimbursement-only deployment:

OFW_EXPENSE_UPLOAD_ONLY=true
OFW_WRITE_MODE=all
OFW_ALLOW_MARK_READ=false

Reading is a write, too (OFW_ALLOW_MARK_READ)

Fetching a message body for the first time marks it read on OurFamilyWizard and stamps a "First Viewed" timestamp your co-parent can see. That is part of the record and cannot be undone — and it happens as a side effect of an ordinary read, so OFW_WRITE_MODE does not govern it.

By default nothing changes: reads behave exactly as they always have. Two controls exist if you want them:

OFW_FETCH_UNREAD_BODIES=true flips ofw_sync_messages to fetch unread bodies by default (off unless set) — useful where read receipts are routine. It is capped by OFW_ALLOW_MARK_READ.

Calendar opt-in (OFW_CALENDAR_WRITES)

Calendar events sit between the two message tiers: they have no draft stage (a created event is immediately visible on the shared record), but unlike a sent message they are reversible — an event can be edited or deleted afterward. If you run in drafts mode but are comfortable with direct calendar writes, set OFW_CALENDAR_WRITES=true to additionally register ofw_create_event, ofw_update_event, and ofw_delete_event. The flag is redundant in all mode and never overrides none.

Egress allowlist

Every outbound request passes its constructed URL through a host check before fetch — the server refuses to contact any host other than ofw.ourfamilywizard.com. Today it always passes, and that is the point: it makes "this server only ever talks to OFW" a structural invariant rather than a code-review promise, so a later refactor or a compromised dependency that pointed a request elsewhere throws instead of carrying your bearer token or messages off-host. It is a pre-flight check on the URL we build, not a redirect-following egress filter.

Troubleshooting

"0 messages" — Claude may have read the notification counts rather than the actual messages. Ask explicitly: "List the messages in my OFW inbox" or "Use ofw_list_message_folders then ofw_list_messages".

"OFW auth: set OFW_USERNAME + OFW_PASSWORD, or install ContextMint Bridge…" — neither auth path is configured. Either fill in the env block in your Claude Desktop config, or install ContextMint Bridge and sign into ourfamilywizard.com in your browser.

"fetchproxy fallback failed" / "ContextMint Bridge is down" — the env-var path wasn't configured and the extension couldn't be reached. Confirm ContextMint Bridge is installed, signed into OFW, and that it's running (open the extension popup). If you want to disable the fallback entirely, set OFW_DISABLE_FETCHPROXY=1.

"OFW login not attempted — this OurFamilyWizard email and password were already rejected" — OFW refused these credentials earlier in this session. OFW counts failed sign-ins against the account, so the server does not re-send a rejected password on every call. Update OFW_USERNAME / OFW_PASSWORD to your current login (or restart the server) and try again.

403 Forbidden — wrong credentials. Verify your username/password at ofw.ourfamilywizard.com.

Tools not appearing in Claude — go to Claude Desktop → Settings → Developer to see connected servers and any error output. Make sure you fully quit and relaunched after editing the config.

Can't find the config file on Mac — in Finder press Cmd+Shift+G and paste ~/Library/Application Support/Claude/.

Security

• Credentials live only in your local config file or .env
• They are passed to the server as environment variables and never logged
• The server authenticates with OFW using the same login flow as the web app
• Use a strong, unique OFW password
• Outbound requests are host-allowlisted to ofw.ourfamilywizard.com (see Egress allowlist)

Local data, and how to remove it

The server keeps co-parenting data on this machine, readable only by your user account:

The cache keeps everything it has synced until you remove it; nothing expires it. When you no longer need it — the account is closed, the case is over, or you are handing the machine on — quit your MCP host and delete it:

rm -rf ~/.cache/ofw-mcp        # or your OFW_CACHE_DIR
rm -rf ~/Downloads/ofw-mcp     # or your OFW_ATTACHMENTS_DIR
rm -f  ~/.ofw-mcp/session.json # or your OFW_SESSION_FILE

The next start rebuilds the cache from OurFamilyWizard with ofw_sync_messages. A directory you pointed OFW_ATTACHMENTS_DIR at yourself keeps its own permissions (it may be shared on purpose); only what the server creates, and the default ~/Downloads/ofw-mcp, are locked down.

Development

npm test         # tsc typecheck, then the vitest suite
npm run build    # tsc → dist/, then esbuild bundle → dist/bundle.js
npm run dev      # node --env-file=.env dist/index.js (requires built dist)

Main is protected. All changes land via PR — open with gh pr create --label <release-notes-label> and add ready-to-merge once you're satisfied with the auto-review feedback. See CLAUDE.md for the full PR + release flow.

Project structure

src/
  index.ts          MCP server entry (McpServer + StdioServerTransport)
  client.ts         OFW HTTP client with Bearer token + 401/429 retry
  auth.ts           resolveAuth(): env-var creds → fetchproxy → error
  auth-password.ts  Spring Security form login (legacy env-var path)
  cache.ts          SQLite cache (messages, drafts, attachments, sync state)
  sync.ts           Folder ID resolution + per-folder sync logic
  config.ts         Cache dir, attachment dir, env parsing
  tools/
    _shared.ts      Recipient mapping, response helpers, path expansion
    user.ts         ofw_get_profile, ofw_get_notifications
    messages.ts     Folders, list, get, send, drafts, sync, attachments
    calendar.ts     List, create, update, delete events
    expenses.ts     Totals, list, create
    journal.ts      List, create entries
tests/              Mirrors src/; mocks OFWClient.request via vi.spyOn

Auth flow

Auth resolution lives in src/auth.ts. Three paths, in priority order:

1. Env vars present → src/auth-password.ts does the legacy OFW Spring Security form login:
   1. GET /ofw/login.form — establishes a session cookie
   2. POST /ofw/login — submits credentials, returns { auth: "<token>" }
2. Env vars absent (and OFW_DISABLE_FETCHPROXY unset) → @fetchproxy/bootstrap reads localStorage["auth"] + localStorage["tokenExpiry"] once from the user's signed-in ourfamilywizard.com tab, then closes the bridge.
3. Nothing configured → throws with both fixes spelled out.

Either path returns a Bearer token to OFWClient, which then operates from Node with Authorization: Bearer <token> — fetchproxy is not in the request hot path. On 401 the client re-resolves auth and replays once. Tokens are cached for 6h (env-var path) or until tokenExpiry (fetchproxy path).

Also see the fetchproxy README for extension install instructions.

License

MIT